The increasing demands of hydrogen and the recent discovery of large reserves of methane have prompted the conversion of methane to hydrogen. The challenges raised by intensive CO₂ emission from the traditional conversion of methane have provoked emission-free hydrogen production from methane. The catalytic decomposition of methane (CDM) to produce hydrogen and advanced carbon hence comes into consideration due to the short process and environmental benignity. Although many researchers have made considerable progress in CDM research on the laboratory scale, CDM is still in its infancy in industrialization. The history of its development, fundamental mechanisms, and recent research progress in catalysts and catalytic systems are herein highlighted. The problems of catalytic interface degradation are reviewed, focusing on deactivation from coke deposition in the CDM process. The introduction of a liquid phase interface which can in-situ remove carbon products provides a new strategy for this process. Furthermore, the challenges and prospects for future research into novel CDM catalysts or catalyst systems are included.

氢气的需求不断增长，以及最近发现的大量甲烷储藏，促使甲烷转化为氢气。密集的CO ₂带来的挑战传统甲烷转化产生的碳排放导致甲烷的无排放氢生产。由于短过程和环境友好性，因此考虑了甲烷（CDM）催化分解产生氢和高级碳的问题。尽管许多研究人员在实验室规模的CDM研究中取得了长足的进步，但CDM仍处于工业化初期。本文重点介绍了其发展历史，基本机理以及催化剂和催化体系的最新研究进展。审查了催化界面降解的问题，重点是CDM工艺中焦炭沉积引起的失活。可以原位去除碳产物的液相界面的引入为该过程提供了新的策略。此外，